I kept it simple and had a grounded grid amp with (3) 813's Also had another
amp with (2) 813's
Paul Gates, KD3JF
On Thu, Sep 3, 2009 at 12:59 AM, Ken Brown <ken.d.brown@hawaiiantel.net>wrote:
> Well, yes I know you can bias 833 to operate as a linear amp. I just
> don't know whether this particular unit had a setting for that. I got
> the impression that it was primarily a class C, CW or FSK unit. And I
> don't recall a modulator in the box. Just one pair of 833s for RF
> amplification.
> >> There was also an amplifier often paired with the T-368 (and perhaps
> >> earlier with the BC-610) which used a pair of 833s in push pull, with
> >> plug-in tank coils, not band switched. I don't
> >> know if the pair of 833 could be operated as a linear amp, with the
> >> T-368 in AM, or if it could only be used for CW and FSK.
> >>
> >
> > Depends on bias and drive levels. In broadcast transmitters many a pair
> > of 833s were modulated by a pair of 833s to give a KW AM output.
> >
> >
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--
Paul, KD3JF
Glen Burnie, MD
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